Redbreast, I am with CChesley on this one (albeit for different reasons). Firstly, regardless of whether the
current owners would accept such an offer, why would
you consider it? It would be like
purchasing a house with an easement that requires you to move out for a couple of weeks a year.
Quite apart from the logistical problems of arranging mutually acceptable/convenient weeks (and removing and then re-stocking your personal effects, etc.), it would mean that you can never take off on an extended
cruise. It would also mean that your market for resale is
extremely liimited. You would need to find someone who wants to sail the boat where she is (you could not likely satisfy the condition if the boat were moved a substantial distance) and someone else who is willing to take on such an onerous limitation as to use. Finally, i am not entirely sure how easy it would be for they (or anyone) to self-insure a boat owned by somebody else.
Brad